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A186672
Total number of n-digit numbers requiring 13 positive biquadrates in their representation as sum of biquadrates.
18
0, 6, 60, 640, 6239, 60228, 600196, 6000213, 60000231, 600000239, 6000000240
OFFSET
1,2
COMMENTS
A102831(n) + A186650(n) + A186652(n) + A186654(n) + A186656(n) + A186658(n) + A186660(n) + A186662(n) + A186664(n) + A186666(n) + A186668(n) + A186670(n) + a(n) + A186674(n) + A186676(n) + A186678(n) + A186681(n) + A186683(n) + A186685(n) = A052268(n), for n>1.
LINKS
Eric Weisstein's World of Mathematics, Waring's Problem.
FORMULA
a(n) = A186671(n) - A186671(n-1).
CROSSREFS
Sequence in context: A186676 A322441 A186674 * A295503 A106259 A085364
KEYWORD
nonn,base,more
AUTHOR
Martin Renner, Feb 25 2011
EXTENSIONS
a(5)-a(11) from Giovanni Resta, Apr 29 2016
STATUS
approved